Shoe machine



F. E. VALOIS.

SHOE MACHINE.

APPLICATION FILED DEC. 7. 1917.

2 SHEETS-SHEET I.

INVENTOR ATTORNEY cysfix 2 130151) F. E. VALOIS.

SHOE MACHINE. APPLICATION. FILED DEC. 1. 1911.

Patented Aug. 15, 1922.

2 SHEETS-SHEET 2.

WITNEBS UNETE stares earner clerics.

FELIX EMILE VALOIS, OF HAVER-HILL, MASSACHUSETTS, ASSIGNOR TO HAMEL SH ETEACHINERY COMPANY, A CORPORATION OF MASSACHUSETTS.

SHOE MACHINE.

Specification of Letters Patent.

Patented Aug. 15, 1Q22.

Application filed December 7, 1917'. Serial No. 205,918.

termed a Baltimore attachment for use upon rough rounders or outersolestitching machines, said device being arranged automatically to providefor varying the width of projection of the shoe sole or of the line ofstitching, respectively, beyond the upper in producing what is termed inthe trade a Baltimore effect.

lVhile mechanisms have heretofore been devised for producing the aboveeffect in the machines mentioned, so far as is known, all suchmechanisms were so intimately associated with the general machinestructure as to preclude any possibility of applying them to existingmachines unprovided therewith.

It is an object therefore of the present in vention to devise anattachment readily ap plicable to existing forms of either the outersolestitcher or the rough rounding machine which can be applied or removesat pleasure without disturbing the operative relation ship of themachine parts and which. when in. operation, shall automatically varythe distance of the line of stitches or or the edgeot the solerespectively from the upper ot the shoe, and which shall cause saidvariation to be in accordance with a fixed and predetermined pattern.

It is a turther object of the invention to provide interchangeablepattern means whereby the automatic action of the attachment may bevaried for use with different classes of work.

It is a further object to provide a patternmember of materialwhich maybe easily shaped by the operator accordingto the requirements ofindividual lots or" shoes, thus avoiding loss of time and themaintenance of an extensive assortment of slightly varyingpattern-members.

It is a further object of the invention to provide a device of the abovecharacter suitable for use upon either right or left shoes.

It is a further object to so construct such an attachment as to avoidcomplexity of parts with its attendant high cost of production andupkeep while at the same time securing all the above noted advantages inoperation.

Other and further objects and advantages of the invention together withimproved details of construction and desirable combinations of partswill be hereinafter de scribed and specifically pointed out in theclaims, reference being had to the. annexed drawings for an illustrationof a preferred embodiment of the invention wherein Fig. l is a. sideelevation of a rough rounder machine of usual type showing the inventionapplied thereto, certain of the ele mcnts of the rough rounder mechanismbeing omitted for clearness of illustration.

Fig. 2 is a perspective, from the right hand side, of the automaticregulating attachment forming the subject matter of this invention.

Fig. 3 is a perspective of one ofthe interchangeable pattern-membersemployed with the attachment.

The machine herein illustrated is a rough rounding machine of well'knownform, and as the present invention is not concerned with the mainoperative elements of this machine, it will be unnecessary to describesuch parts at length.

1 is a standard or support upon which is mounted the machine head 2 inthe usual manner. At 3 is indicated the main drive shaft. having fixedthereto an eccentric 4;. adapted to operate, through the eccentric strap5 and the rod 6, intermediate connections not herein illustrated toreciprocate the cutting knives, all in usual and well known manner.

7 is the manually retractable presser foot and at 8 is a relativelyfixed work guide carried upon the supporting bracket 9 forming a partof, or being attached-to, the machine head. At 10 is a member carriedupon the forward portion of the bracket 9, having formed in the frontface thereof a channel her 15, said lever-member projecting torwardly oiits pivot at 16, and having pivotally mounted upon its forward end at 17the guide-member 12. The guide-member 12 at the point 18 projects aboveits pivotal sup port and engaging with said end 18 is a. spring-member19, actiin to throw the lower portion of the guide-member 19 rearwardlyand into engagement with the bottom of the chamicl-ineniber11.

Pivoterl at 20 upon a portion oil? the head is a lever arnrilpsaidleverarm having its forward end at arranged to with the upper end or the rod13. At 23 is indicated a rod adjustably secured at 24: to the lever 21and extending; downwardly to a convenient point. for control by theoperator as for example, by means of a treadle, although it isunderstood that other devices under control of theoperator might well besubstituted for suclrtreadle means. .iit

indicated a bracket adapted for attachinent to the I'ruichine head as bymeans of bolts 26 ant 27 passing through suitably l'orined openings 28;28"" n'ovidcdin said bracket and engaging in corresponding openings inthe machine head. The bracketlneniber 25 shown (Fig. is formed with anopen channel .29 in its upper surface, the

sides and bottom of said channel being; suitably finished to it'ornraguide-way for a reciprccable part to be described. Slidable along saidchannel 29 a cam-carrier 30, said earn-carrier being channeled outthrou'hout its entire len th whereb to b b form a trough-like structiu'e, thechanneled out portion 31 of said carrier "toriniiip; a holder orreceptacle for a ieinoinble or detachable pattern earn-member 352.Projecting across the cam-carrierat are pins or other suitable meansadapted for rigidly positioning the pattern-momber within theearn-carrier, it being noted that as herein shown the pattern-mealher isbeveled oil" as at 351 in such a manner as to engage beneath the rearpin 33 to thereby prevent movement of the patterameniber rcarwardly withrespect to the caiii-carrier. (iii; iudi-. cates a set screw projectingthrough the wall of the channel. 29 and adapted to engage the side oithe canrcarrier 30 thereby to pro-- vide suitable 'lr'rictioningmeansfor prevent-- ing too great freedom of inoven'ient oi the caurearrier inits guiding channel.

Upon the rearward extremity ol levermember 15 is mounted a roller 37said roller being so positioned as to engage the upper surface of thepattern cain-nieniber 32 when the latter is pro ierly positionedwitl'iin the 'iLIHClH.1lG1. The patternanemher' 32 as herein shown is inthe form ot a siizbstai'itiallv flat plate fitting snugly within the chrel, 31 of the Cain-carrier. While this pattern-n'ieinher 32 may be ilornuu'i oi hardened steel tor exam ne, it desired, it is the end of saidlever being 'ijern'u-id with a he 43 located at a slight distance fromthe up! ..r

purpose of this invention to construct the pattern-member of relativelysoft material, such for example as soft brass lead, or iibre board. When so formed it intended that the upper edge 110 thereof shall form thepattern ca1n-1ncinber which may thus be easily varied in configurationwithout necessitaz l. D the employment of machine tools,a filo or kniiiebeing all that. is required for changing thecontour oi? the can].surface. it is therefore possible by the employment of this device toprovide for variations in the cam in accordance with slight changes inthe style of shoes without necessitating the provision ot' a large andexpensive assortment of pattern cams.

The opposite edges of the C in-carr er are provided upon their upperiaces r i series of rack-teeth 35, 86, said racl-z- ,1 being adapted forengagement by a pair oi pawls to be hereinafter described.

Pivotally mounted upon a projecting h-" e ll oi? the bracket 25 a lever452, the app 1' .1

surface of the caiii-carrier 30. -l--l is a pin fixed within said head 3:3 projseizing; outwardly above said ean'i-carrier and iloriningg thepivotal support for a pawl-carrier 4-5, The pawl-carrier 45 as hereinshown in provided with two pawls and 45'? fixed thereto and projectingin opposite directions. said pawls lyingrespectively' in the planes oithe two racks and lVhile as herein shown these pawls are integral withthe pawl-carrier, it is clearly evident that they might, be "termed asseparate members and attached thereto, it being necessary however withthe present construction that these pawls should bear a lined relationto each other.

While in the present disclcsure the cane carrier has been shown asprovided with two separate spaced apart racks and the pawl-- members asadapted to engage with the resp tive racks it is within the scope ot thepresent. invention to employ a sinel r11? member with a' pair oi? pawlslying; in the plane thereof and adapted tor alibi-native engagement withthe same rack.

jecting from the bracket 25 is a n lly eontrollable lever 4:9, saidlever being forked at its forward end to project era-either side of thebracket 9 thus presenting portions upon. either side of'the wor-r guidefor ready inanipulation by the hand of the operator. The lever-member4:5) projects rcarwardly of its pivot at 50, and adapted to haveconnected thereto one QDClOii a coiled spring 51, the opposite end ofsaid spring being coi'inected to a pin 52, projecting -from the pawl4:6, the specific point of connection, however, of this spring with thepawl being immaterial. 'lhe rearward extremity of the member 50therefore reached substantially the lower limit oi its movement.

Upon attainment of the desired Width of the sole in producing theBaltimore effect, the greatest width or projection being adjacent theshank, the treadle controlling the pos tion of the lever 21 is releasedby the opei r, thereby permitting the gauge 12 to rise to its uppermostposition under action of the springdifted rod 13, whereupon the edgegauge 8 acts, during the finishing of the shank, to guide the shoe. Uponpresentation the other shoe of a pair to the machine the shank is firstformed upon that side of the shoe upon which the Baltimore effect is tobe produced and upon reaching the forepart of the shoe the treadle isagain depressed, the roll 3'? still resting upon the high part of cam 32whereby the edge gauge 12 is suddenly moved down to its lowermostposition as shown in the drawing, thereby producing the extremeextension or the sole. The operator in ately lifts the lever it)throwing pawl at? out of action and throwing pawl i6 into engagementwith rack 35 whereupon carrier is moved it'orwardly the roll travelingupon the upper face it) of the canrmember and permitting the gradualrise of the guide 12, until the roll reaches and rests upon the rear endof the cam at which time pawl 46 reaches the end of rack and furthermovement ceases, the 12 being thus held in position for proc tion of thenormal extension of the torepart or the shoe. lVhen the shanl: of theshoe is reached the treadle is released permitting the guide 12 to riseto its upper position the guide 8 thereupon performing its function andthe parts thus being restored to their initial position.

It is clear that the application of this at tachment comprising theauxiliary Work. guide or gauge 12 with its actuating arm and itsposition-controlling means comprising bracket carrying the cam mechanismand the lever mechanism for moving it, in no war changes the operativerelationship oi the parts oi? the machine to which it is applied, but ismerely superposed thereon. No disturbance of these relationships or anydismantling of the machine is therefore necessary during its attachmentor detachment.

lVhile as herein shown the mechanism is applied to a rough rounder it isclearly evident that the same mechanism isadapted for use in connectionwith other machines operating upon an edge of a shoe such for example asthe outersole stitcher, in Which it is desired to vary the distance ofthe line of stitching from the shoe upper. It is also evident thatvarious changes and modifications in the detail structure of this devicemay be made v-Jithout departing from the essential features and mode ofoperation thereof, and the invention is intended to include all suchchanges and modificat ons as Well as such applications of the presentstructure to other machines as may fall Within the scope of the annexedclaims,

Having thus descri cd the invention and a preferred embodiment thereoftogether With details of construction and the mode of operation of thesame what I claim and do sire to protect by Letters Patent of the UnitedStates isz- 1. Ln attachment for shoe machines comprising abracket-member having guiding means thereon, a carrier movable alongsaid guiding means, a patternam mounted upon said carrier and mechanismfor aoving said carrier along said guiding means.

2. In a shoe machine, in combination an adjustable edge gauge "and meansfor progressively adjusting the same, said means comprisin patterncam-member movable in a rectilinear path and means constructed andarranged to advance or retract said pa tern cam-member at the will ofthe operator. 3. An attachment for prising a bracl'zet-member hav likeguidevvay formed therein movable along said gu'ideway, a pattern camdetachably supported upon said carrier and automatically actuatedmechanism for ing said carrier along said guideway;

4. An attachment for shoe machines comrisin a bracket-member having achannela ch a carrier g a slot therein, a pattern-cam adapted toremovably positioned within said slot, and means for reciprocating saidC;1l il1 Within said guideway.

5. in an attachment for shoe machines, in combination, a guide-member, acam-carrier slidable thereon, a pair of racks upon said carrier, andpair of oppositely acting pawl-s constructed and arranged for alternatedriving engagement with the respective racks. v

6. In a shoe machine, in combination, a r ciprocable :am-carrier havingracleteelh thereon, a pair oi oppositely directed, vibratory pawls,means for alternately throwing said pawls into engagement withraclnteeth of said carrier, a cammember supported upon said carrier andmeans for vibrating said pawls.

7. In an attachment for shoe machines, in combination, a'cam-carrierreciprocable in a rectilinear path and'having rack-teeth thereon, avibratory lever, a pair of oppositely acting paWls carried thereby, andactuating means, comprising a resilient element, for throwing said pawlsalternately into driving enga ement with the rack-teeth upon saidcarrier.

8. In a Baltimore attachment, in combinashoe machines comi reg-ciide'ivay formed therein, a ca rier ovaL-lenlon said guidevva'y, saidcarrier,

i will be evident that upon lifting the terward end of the lever 41:9from the position shown in Fig. l, the coil. springbl will be expandedand will thereby pull down upon the pawl 4-.6, causing the pawl carrierto turn. upon ltS pivot, lifting the pawl 47 from engagementwlth therack 36 as shown in Fig. 1 and throwing pawll6 into engage ment withracl; 35. Upon movement of the lever 49 in the oppositedirection, thereverse action will takeplace, the spring 51 being compressed, therebymoving pawl 46 out of engagement and pawl 427 into engagement with thecorresponding racks.

54: is a boss projecting outwardly from the bracket 25 having pivotallymounted thereupon a lever-arm 55, said lever-arm being slot-ted at itslower end at 56 for engagement, as herein shown,- with a block 57mounted upon a pin 58 projecting outwardly from the rod 6, movement ofsaid rod 6 through the eccentric strap 5, thus serving to cause arocking motion of the lever 55 about its pivotal support, At 59 and 60are provided a pair of spaced apart openings in the lever-arm 55, andengagable with eitheroit' said openings isa pin 61 forming a pivotalsupport for therear end of link 62, said link being pivotally connectedat its forward end, as by means of a pin 63, with the lower end oflever-armdil. While as herein shown the lever 55is arranged to receivemotion from the eccentric 6, it is clearly evident that it is adaptedequally well to be actuated from any suitably driven partof the machine.

in producing what is known as a Baltimore effect upon the edge of theshoe, it is necessary to gradually increase the width iection ot' thettorepart of the shoe upconsiderably on one side thereof to an extentbeyond the normal width of the torepart.

This etliect maybe produced in machines as heretofore known eithermanually as by a gradual further depression of the edge range 12 by theoperator beyond the point at which it depressed in forming the remainderof the forepart oi. the shoe, or in machines so constructed, by theemployment of suitably shaped. cams acting as pattern devices forgraduallydepressing the edge gauge at the desired point. The manual,operation as to produce uniform results and the machine operation istherefore to be preferred, but as many machines are in use which areunprorided. with the mechanical arrangement for producing the desiredresult, the present invention has been devised whereby existmg describedis uncertain and fails machines maybe provided with mechanism of thischaracter without substantial alteration. i I

The operation of the mechanism described will now be evident. Brackethaving been suitably positioned in the machine,

the block 57 en 'a iu within the slot 56 and if C7 the cam roll 37 beingin engagement with the cam surface 4.0 of the pattern cam 32, theoperator may pla 'e the machine in use by depression of the usual;starting treadle thereby actuatingthe presser foot 7 and )ermitting theproper positilonin e' of the shoe agrainstthe relatively fixed edgeguide- 8, the guide 12 at this time being in its normally raisedposition, lever 4-9 being in elevated position, pawl 4.6 being down butresting on the edge of the cani-carrier beyond the last rack tooth and.therefore oscillating idly. The machine operation is started upon theshank portion of the shoe sole, but as the forepart of the. shoe isreached, the guide 12 isdepressed by means of its treadle through theconnections 23, 21, 13 and 16, said edge guide thus projecting below theguide 8, and pushing the upper oi? the shoe to a greater distance fromthe cutting blades, producing a greater extension or the sole beyond theupper at this part of the shoe than at the shank portion. It will benoted that in depressing the member 12 as just described, the roll 3?rests upon therear extremity-of the upper surface of the cam-member 32which forms a fixed support for the reaward end of the lever 15 causingthe forward end 17 thereof to partake ofthe downward movement of the rod13. a

The operation having now reached the point at which it is desired toproduce the Baltimore effect, the operatorlwill depress the forward endlever 49 to throw. pawl 47 into engagement with the rack 36. its soon asthe pawl 47 is in engagement with its rack the rocking movement of thelever 55 through the connecting link 62 and the pawl carrying} lever 42will cause the pawl. 45? to gradually move the rack 36 rearwardly, carrying thcrewlth the pattern cam 32. As

herein shown the pattern cam 32 gradually increases in height from rearto front and by reason of this construction the movement thereot withrespect to the roll 37 will producea gradual lifting ofthe latter andthereby a gradual depression of the edge guide l2beyond the lower limitreached by the latter upon depression of the treadle, the position ofmember 13 and pivot ldbeing unaitected, by the motion of lever 15, thismovement continuing until the pawl has reached the end ofthe rack-teeth,unless sooner stopped by further manipulation of lever l?) by theoperator. As shown in the drawings, the pawl 4L7 has reached the lasttooth of its rack, and the guide 12 has tion, a ln'aclcet oppoz titclv(lll'QLt'L: upon said lever, a c said bra .lr t, a pa r t. rier forengagement in anually actuated means co .ici-Is upon the respecth usinga tern 9. in a shoe machine adjustahle met i ti 1 position and providedwith cam opera ed lever. a detachable bracket-member, a. camcarrierslulahle thereon, a cam upon said carrier for engaging said ler'er, rackelements upon s2 carrier, vibratory paivls supported upon the bracketfor engaging the respective racks, means for actuation from a moving; 5art oi the machine for vibrating the pan'ls, and a manually controllablelepivotcd upon the bracket for selectively determining e1 ement of thepavgls with the respective racks.

10. in an attachmenttor shoe machines, in combination, a bracket-memberhaving a guide channel formed therein. a trough-like cam-carrierslidable in said channel, means for removablv positioning a patterncammember within said carrier. a air o't ra ls upon said carrier. alever pivoted upon said lyracltet. a pair oi oppositely directed pa'Wlspivotal; mounted pon said lever for engagement With the respective raits, means for alternately throwing said pavils into and out of engagenent with the racks and actu atinp; connections for vihrating saidlever.

ll. in an attachment for shoe machines a re iprocahlc meuiher having:rack te-th thereon, a vibratouv lever havin a carrier pivoted thereto, apair of op 'iositei directed par le 'iast to said carrier and resilientmeans to: 4 i no said carrier upon its pivot to therehv pavvls i =0 e: pwill (3i the operator.

1?. In an attzurlunent tor shoe machines a reciprocable member having};a pair oi? racl 1' thereon. an adjustable pawl-carrier, means i'orvibrating said carrier along said racks, a pair of oppositely directedpaivls fixed upon said carricr aiid arranged for alternative engagementwith the respective racks, a hand lever. and a coil spring; conncctin;said lever and paivhcarrier whereby movement oi said lever resilientlyadjust... the pawl-carrier to thereby engage e'nner at said PtlWlS withits corresponding lilCl-i will.

13. In a Baltimore attachment. a traveL ling cam-carrier having a groovetherein er;- tending in the direction of travel, a-

a pattern cam member formed as a flat plate and detachably supported insaid groove.

14.. In a Baltimore attachment, a slid-able cam-carrier, and a platedikemember fixedly throw either oi said iember havingone cam.

pattern carrier slidable thereon, oattern in the form of a substantiallytachably secured to said carrier.

i6. In a Baltimore attachment, a movahle cam carrier having channellongitudinal thereof, and a pattern cam member ruled as a Hat plate andrigidly supported in said channel.

17.111 a shoe machine, an edge gauge, a pattern-controlled mechanism foradjusting said edge gauge, a slidable supportfor said mechanism, andmeans for sliding said support, said means comprising a lever.

18. In a shoe machine, an edge gauge, a pattern-controlled mechanism foradjusting; said'edge gauge, a slidable support for said mechanism andmanually operable means for sliding" said support.

19. In a shoe machine, an edge gauge, a pattern-controlled mechanism foradjusting said edge gauge, and a movable support for said mechanismadapted to move said mechanism to bring-said edge gauge from aninoperative position to an operative position, the position of saidsupport being substantially unaffected by the operation of saidmechanism.

20. In combination with a shoe machine, having a supporting frame andoperating elements arranged to operate upon a shoe including" a Workgauge. of a supplementary mechanism comprising an auxiliary Work gaugeand position-con'trollin{ and actuatiu j' means therefor constructed andard to he detachaliily carried by said frame and to he actuated by saidoperating elements, said mechanism being readily detachahle therefrom,and said irame and operating elements remannn; in operative relationshipduring the attacl'n'nent and detachment oi said mechanism.

21. In a shoe machine, an edge gauge, means for moving it from and tooperative position, and a reciprocating; cam for determining saidposition, said moving means acting at all times unaffected by theposition oil said cam. i

522. in a shoe machine, an edge gauge, means for moving said gauge inpath, and mechanism arranged to act \vhile said means is inactiveforfurther moving said gauge in said path.

23. In a shoe machine, an edge gauge, means for movingsaid gauge, andautomatic mechanism by which the position of said gauge isvaried Whilesaid means remains inactive.

24.111 a shoe machine, an edge gauge, means for moving it from and t0operative position, and a. cam for adjusting said posite of readilyworkable material, de-

tion, said meving means having a common In testimony whereof, he hassigned his vposition for all operative adjustments 0f said name to thisspecification, in the presence of 10 gauge by said Cam. e twosubscribing Witnesses. U i 25. In 4 shoe madame, an ed e en e, FELIXEMILE VALOIS. 5 lever for ad usting the ope-mtlve position 0i i V sandgauge,and1neans for moving said gauge Witnesses from and tooperatlveposltlon acting on the E. A. HARRIS,

fulcrum of said 16VGI., F. A. REARDON.

